CN109752509A - Method for determining fractured lithofacies - Google Patents
Method for determining fractured lithofacies Download PDFInfo
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- CN109752509A CN109752509A CN201910197012.0A CN201910197012A CN109752509A CN 109752509 A CN109752509 A CN 109752509A CN 201910197012 A CN201910197012 A CN 201910197012A CN 109752509 A CN109752509 A CN 109752509A
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Abstract
The invention relates to a method for determining a fractured lithofacies, which specifically comprises the following steps: 1) performing open-air tectonic lithology reconnaissance; 2) measuring a field macroscopic structure; 3) measuring and counting fracture occurrence of fractured lithofacies at each strength and level; 4) collecting various samples by a system; 5) making various thin sheets, polished sections and probe sheets, and performing lithology and mineralogy identification under a polarizing microscope; 6) carrying out microscopic fracture measurement and statistics on the basis of mineralogy and lithology identification; 7) researching micro-fracture lithology and geochemistry lithology; 8) the fractured and lithologic phase is defined. The invention has the following advantages: quantitative description of the fragmentation lithomorphic phase characteristics and classification grading is realized, theoretical research and application analysis are combined, and basic data are provided for analyzing the diagenetic mechanism, the structural and fluid coupling mechanism, prospecting prediction, the distribution rule and circulation of hydrological and geological water, engineering geological slope stability evaluation, environmental geological disaster evaluation and the like.
Description
Technical field
The present invention relates to mineral exploration technical field, eco-environment technology field and geological disaster technical fields, specifically
Refer to that a kind of fragmentation lithification mutually determines method.
Background technique
In the brittle structures deformation domain of earth's crust shallow-layer, fragmentation lithification is mutually formed in the earth's crust and changes fragmentation lithification phase extensive development
During making, have the characteristics that the strong coupling of crack-fluid, it is close with the life relations of production of the people.Geologic prospect field
The minor structures such as internal fissure, joint, foliation, lineation are advantageous pathway of ore fluid and storage mine space and fragmentation lithification phase
Important composition content, effectively identify that fragmentation lithification phase and its composition are the important research contents of exploration prediction.Hydrogeology,
In engineering geology and environmental geology area research, the accurate distribution for drawing a circle to approve fragmentation lithification phase is to geological environment and geological disaster
Assessment, engineering slope Stability Assessment, groundwater occurrence and ground water circulation research are of great significance.In producing and study now
Pay attention to not be able to satisfy kataclasticsization using detection of the geophysical prospecting method to fragmentation rock mass and mutually identify requirement, lack and be directed to fragmentation more
Lithification mutually comprehensively, system, fine identification and determine technology.
Summary of the invention
Present invention aim to address being mentioned in background technique, a kind of fragmentation lithification is provided and mutually determines method.
In order to solve the above technical problems, technical solution provided by the invention are as follows: a kind of fragmentation lithification mutually determines method, specifically
The following steps are included:
1) Field structure lithology is made an on-the-spot survey, and chooses mineral exploration engineering and construction lithology section carries out construction measurement；
2) field macrostructure measures, and divides fragmentation lithification phase intensity, rank；
3) measurement counts each intensity, rank fragmentation lithification phase crack occurrence, and completes corresponding quantitative parameter measurement and statistics；
4) all kinds of samples of system acquisition lay the foundation for indoor microcosmic identification；
5) all kinds of thin slices, mating plate and probe piece are made, lithology and chalcography identification are carried out under petrographic microscope；
6) on chalcography, lithology evaluation of foundation, carry out microcrack measurement and statistics；
7) microcrack lithology and geochemistry lithology research；
8) fragmentation lithification phase is drawn a circle to approve, exploration prediction and hydrogeology, engineering geology and environmental geology applied analysis are carried out.
As a preferred embodiment, fragmentation lithification phase intensity is divided in the step 2), rank includes crack property and class
Type divides.
As a preferred embodiment, quantitative parameter described in the step 3) includes fracture density, fracture opening, crack
Rate, fracture filling and filling operation.
As a preferred embodiment, in the step 7) microcrack lithology and geochemistry lithology research include but
It is not limited to polarized microscope analysis, electron probing analysis and X-ray X-ray powder diffraction analysis.
The present invention has the advantage that covering mineral exploration, hydrogeology, engineering geology and each neck of environmental geology
Domain, has the universality of application, and the determination of fragmentation lithification phase of the present invention is to cover the comprehensive system description of structure and substance
It is quantitative by fracture density, fracture opening, fracture filling and filling intensity, fracture aperture, crack permeability etc. with determination
The measurement of parameter, realizes the quantitative description of fragmentation lithification phase character and classification classification, and theoretical research is combined with applied analysis.
The determination of fragmentation lithification phase of the present invention is not only that exploration prediction, the distribution of hydrogeological water and water circulation, environmental geological Hazard are commented
Estimate, engineering geology Slope Stability Evaluation provides basic parameter, while be crack lithology and geochemistry lithology research,
Analysis petrogenetic-minerogenetic mechanism and construction and the coupling mechanism of fluid provide the foundation data.
Detailed description of the invention
Fig. 1 is the flow chart that a kind of fragmentation lithification of the present invention mutually determines method.
Specific embodiment
Present invention will be described in further detail below with reference to the accompanying drawings.
In conjunction with attached drawing, a kind of fragmentation lithification mutually determines method, specifically includes the following steps:
1) Field structure lithology is made an on-the-spot survey, and chooses mineral exploration engineering and construction lithology section carries out construction measurement；
2) field macrostructure measures, and divides fragmentation lithification phase intensity, rank；
3) measurement counts each intensity, rank fragmentation lithification phase crack occurrence, and completes corresponding quantitative parameter measurement and statistics；
4) all kinds of samples of system acquisition lay the foundation for indoor microcosmic identification；
5) all kinds of thin slices, mating plate and probe piece are made, lithology and chalcography identification are carried out under petrographic microscope；
6) on chalcography, lithology evaluation of foundation, carry out microcrack measurement and statistics；
7) microcrack lithology and geochemistry lithology research；
8) fragmentation lithification phase is drawn a circle to approve, exploration prediction and hydrogeology, engineering geology and environmental geology applied analysis are carried out.
As a preferred embodiment, fragmentation lithification phase intensity is divided in the step 2), rank includes crack property and class
Type divides.
As a preferred embodiment, quantitative parameter described in the step 3) includes fracture density, fracture opening, crack
Rate, fracture filling and filling operation.
As a preferred embodiment, in the step 7) microcrack lithology and geochemistry lithology research include but
It is not limited to polarized microscope analysis, electron probing analysis and X-ray X-ray powder diffraction analysis.
With the application of the invention, having carried out exploration prediction research to Xinjiang Sa Reke copper deposit.By to Xinjiang Sa Reke copper mine
Fragmentation lithification acquaintance is other in aubergine irony glutenite, it is determined that fragmentation lithification Xiang Yutong is at there is substantial connection between mine.Macroscopic view
On determine out, strong fragmentation lithification anagenite (fracture density is greater than 5 every meter), is strong fragmentation lithification phase, generally mostly ore shoot
Position is developed with the strong bituminization of black；Middle fragmentation lithification anagenite (fracture density is 1~5 every meter), is middle fragmentation lithification phase,
Bituminization-colour fading alteration phase generally in copper mine body and grey black；(fracture density is lower than every meter 1 to weak fragmentation lithification anagenite
Item), it is weak fragmentation lithification phase, generally colour fadingization anagenite and the variegated anagenite of spot, mostly Cu concentrate grade body；Aubergine irony is miscellaneous
Conglomerate (no fragmentation lithification, fracture density are lower than 0.01 every meter), for normal non-alteration aubergine irony anagenite.Fragmentation lithification
Phase (fracture zone) be good depositing ore structure, in 5 lithology layers of Ku Zigong Soviet Union group and microfacies body, strong fragmentation lithification phase and
Strong hydrocarbon-rich reproducibility Basin-Fluid (bituminization-colour fading-ferrimanganic carbonation) coupling forms the more metal industry ore bodies of copper
Key factor.Strong oxidationreduction has occurred with cupric oxidation phase aubergine glutenite class in hydrocarbon-rich class reproducibility Basin-Fluid
Geochemistry lithology acts on and mineral is caused finally to precipitate on a large scale.
The present invention has the advantage that covering mineral exploration, hydrogeology, engineering geology and each neck of environmental geology
Domain, has the universality of application, and the determination of fragmentation lithification phase of the present invention is to cover the comprehensive system description of structure and substance
It is quantitative by fracture density, fracture opening, fracture filling and filling intensity, fracture aperture, crack permeability etc. with determination
The measurement of parameter, realizes the quantitative description of fragmentation lithification phase character and classification classification, and theoretical research is combined with applied analysis.
The determination of fragmentation lithification phase of the present invention is not only that exploration prediction, the distribution of hydrogeological water and water circulation, environmental geological Hazard are commented
Estimate, engineering geology Slope Stability Evaluation provides basic parameter, while be crack lithology and geochemistry lithology research,
Analysis petrogenetic-minerogenetic mechanism and construction and the coupling mechanism of fluid provide the foundation data.
The present invention and its embodiments have been described above, this description is no restricted, shown in the drawings
Only one of embodiments of the present invention, actual design are not limited thereto.All in all if the ordinary skill of this field
Personnel are enlightened by it, without departing from the spirit of the invention, are not inventively designed and the technical solution phase
As frame mode and embodiment, be within the scope of protection of the invention.
Claims (4)
1. a kind of fragmentation lithification mutually determines method, which is characterized in that specifically includes the following steps:
1) Field structure lithology is made an on-the-spot survey, and chooses mineral exploration engineering and construction lithology section carries out construction measurement；
2) field macrostructure measures, and divides fragmentation lithification phase intensity, rank；
3) measurement counts each intensity, rank fragmentation lithification phase crack occurrence, and completes corresponding quantitative parameter measurement and statistics；
4) all kinds of samples of system acquisition lay the foundation for indoor microcosmic identification；
5) all kinds of thin slices, mating plate and probe piece are made, lithology and chalcography identification are carried out under petrographic microscope；
6) on chalcography, lithology evaluation of foundation, carry out microcrack measurement and statistics；
7) microcrack lithology and geochemistry lithology research；
8) fragmentation lithification phase is drawn a circle to approve, exploration prediction and hydrogeology, engineering geology and environmental geology applied analysis are carried out.
2. a kind of fragmentation lithification according to claim 1 mutually determines method, it is characterised in that: divided in the step 2) broken
Split lithification phase intensity, rank includes crack property and Type division.
3. a kind of fragmentation lithification according to claim 1 mutually determines method, it is characterised in that: fixed described in the step 3)
Measuring parameter includes fracture density, fracture opening, crack rate, fracture filling and filling operation.
4. a kind of fragmentation lithification according to claim 1 mutually determines method, it is characterised in that: micro- in the step 7) to split
Gap lithology and geochemistry lithology research include but is not limited to polarized microscope analysis, electron probing analysis and X-ray powder
Brilliant diffraction analysis.
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110245433A (en) * | 2019-06-18 | 2019-09-17 | 有色金属矿产地质调查中心 | Method for determining erosive lithofacies |
| CN111089951A (en) * | 2019-12-28 | 2020-05-01 | 有色金属矿产地质调查中心 | Method for recovering heat flux of chlorite transformation |
Citations (4)
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| EP0842443A1 (en) * | 1996-05-31 | 1998-05-20 | Elf Exploration Production | Method for automatically determining stratification beds in a site |
| WO2010104535A1 (en) * | 2009-03-13 | 2010-09-16 | Exxonmobil Upstream Research Company | Method for predicting fluid flow |
| CN104156601A (en) * | 2014-08-13 | 2014-11-19 | 昆明理工大学 | Large-scale alteration lithofacies positioning and predicating method for hydrothermal deposit |
| CN108459358A (en) * | 2018-03-12 | 2018-08-28 | 有色金属矿产地质调查中心 | Novel method for restoring top surface morphology of sedimentary basin substrate and predicting deep ore body positioning |
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2019
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Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0842443A1 (en) * | 1996-05-31 | 1998-05-20 | Elf Exploration Production | Method for automatically determining stratification beds in a site |
| WO2010104535A1 (en) * | 2009-03-13 | 2010-09-16 | Exxonmobil Upstream Research Company | Method for predicting fluid flow |
| CN104156601A (en) * | 2014-08-13 | 2014-11-19 | 昆明理工大学 | Large-scale alteration lithofacies positioning and predicating method for hydrothermal deposit |
| CN108459358A (en) * | 2018-03-12 | 2018-08-28 | 有色金属矿产地质调查中心 | Novel method for restoring top surface morphology of sedimentary basin substrate and predicting deep ore body positioning |
Non-Patent Citations (3)
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| 方维萱: "地球化学岩相学的研究内容、方法与应用实例", 《矿物学报》 * |
| 陈玉民 等: "《胶西北大规模金成矿作用与成因模型》", 30 June 2016, 地质出版社 * |
| 韩文华 等: "新疆萨热克砂砾岩型铜矿区碎裂岩化相特征", 《地球科学与环境学报》 * |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110245433A (en) * | 2019-06-18 | 2019-09-17 | 有色金属矿产地质调查中心 | Method for determining erosive lithofacies |
| CN111089951A (en) * | 2019-12-28 | 2020-05-01 | 有色金属矿产地质调查中心 | Method for recovering heat flux of chlorite transformation |
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Application publication date: 20190514 |